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我区右玉县种植胡麻15万余亩。由于面积大,轮作倒茬有困难,有利亚麻细卷蛾(Pbalonia epiilnana Linnaeus)的发生,逐年蔓延加重。据1984年7月初一夜(?)只黑光灯可诱到蛾量1,625头,比前几年50多头多30多倍。被害胡麻植株由4％增到5—6％,严重地块达7％左右.上堡村北一块地,据调查每平方米有虫8—11头(越冬虫)。针对虫害情况,我们于1980、1981、1982年对其进行观察研究,以便摸清规律,搞好防治工作,确保胡麻丰产。
I District Yu You planted more than 15 acres flax. Due to the large area, cropping stubble has difficulties, the occurrence of flax moth (Pbalonia epiilnana Linnaeus) occurs, increasing year by year. According to the first night of July 1984 (?), Only black light was able to induce 1,625 moths, about 30 times more than the previous 50-moths. Harm flax plants increased from 4% to 5-6%, a serious block up to about 7% .On the northern part of the village on the ground, according to the survey of insect per square meter 8-11 (overwintering insect). In response to the pest situation, we observed and studied them in 1980, 1981 and 1982 in order to find out the law, improve prevention and control and ensure flax yield.